Well, other bands know more than three chords. Your professional bands can play up to six, sometimes seven, completely different chords.
Oz ,'Storyteller'
Buffy 3: Once, Twice, Three Times a Slayer
[NAFDA] This is where we talk about the show! Anything that's aired in the US (including promos) is fair game. No spoilers though—if you post one by accident, an admin will delete it.